Java用SLF4J + Logback，排查问题时把级别调到DEBUG，关键位置临时打三五行日志，确认后再调回INFO。 Python用logging模块，设置自定义格式，带时间戳、函数名、行号，控制台和文件双通道。 有人可能觉得：这不就是正规日志输出吗，跟Caveman Debugging有什么关系？

文章浏览阅读35次。本文深入剖析caveman debugging（即print调试法）在生产环境问题排查中的不可替代性。重点阐述其在分布式系统、高并发场景及黑盒依赖等调试器失效场景下的高效性，强调时间线观测、trace_id标识、结构化临时日志等实操规范，并通过真实下单超时案例展示两轮打点如何快速定位 ...

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